#ifndef _HEAD_DRV_SYSTICK
#define _HEAD_DRV_SYSTICK
#include <stm32f4xx.h>
#include "task.h"
void drv_systick_ms(uint16_t ms);
void drv_tim6_init(void);
void drv_systick_us(uint32_t us);
#endif//_HEAD_DRV_SYSTICK
